Expanded Polystyrene Insulation Thermal Conductivity

The example shows a quality control run on a commercially available expanded polystyrene material eps 040.

Expanded polystyrene insulation thermal conductivity.

R values per inch given in si and imperial units typical values are approximations based on the average of available results. Ranges are marked with. General purpose polystyrene is clear hard and rather brittle. Thermal insulation values and calculations are critical when designing specifying and buying insulation products.

Ten samples of the same batch were tested at 24 c and according to din en 13163 at 10 c. Gases possess poor thermal conduction properties compared to liquids and solids and thus makes a good insulation material if they can be trapped e g. In general thermal insulation is primarily based on the very low thermal conductivity of gases. Polystyrene can be solid or foamed.

Heat transfer engineering. Thermal conductivity is defined as the amount of heat in watts transferred through a square area of material of given thickness in metres due to a difference in temperature the lower the thermal conductivity of the material the greater the material s ability to resist heat transfer and hence the greater the insulation s effectiveness. Astm c578 standard specification for rigid cellular polystyrene thermal insulation addresses the physical properties and performance characteristics of eps foam as it relates to thermal insulation in construction applications. Then the effect of temperature and eps volume fraction on the thermal conductivity and dry density of efc were observed.

In a foam like structure. Thermal conductivity is defined as the amount of heat in watts transferred through a square area of material of given thickness in metres due to a difference in temperature the lower the thermal conductivity of the material the greater the material s ability to resist heat transfer and hence the greater the insulation s effectiveness. Insulation material thermal conductivity chart. Expanded polystyrene thermal conductivity.

It is an inexpensive resin per unit weight. Polystyrene ps ˌ p ɒ l i ˈ s t aɪ r iː n is a synthetic aromatic hydrocarbon polymer made from the monomer known as styrene. One of the most popular materials for the thermal insulation of buildings is expanded polystyrene. Thermal conductivity of expanded polystyrene.

Various insulation material thermal conductivity chart. In this research ultralightweight expanded polystyrene foamed concrete efc was made by the chemical foaming method and its thermal insulation property was measured by the transient method at different environment temperatures from 10 to 40 c. The thermal conductivity of expanded polystyrene foam of density 20 kg m 3 is 0 035 0 037 w m k at 10 c.